tb62778fng Marktech Optoelectronics, tb62778fng Datasheet - Page 11

• Manufacturer Part Number: tb62778fng
• Description: 8-channel Constant-current Led Driver Of The 3.3-v And 5-v Power Supply Voltage Operation
• Manufacturer: Marktech Optoelectronics

Test Circuit 4: Supply Current
Test Circuit 5: Output Current (I
Test Circuit 6: Switching Characteristics
Note: The output terminal is based on the power supply current conditions on page 6 and 7.
V
V
t
(10 to 90%)
V
V
t
(10 to 90%)
r
V
V
t
(10 to 90%)
r
r
IH
IL
IH
IL
= t
= t
IH
IL
= t
Theoretical output current = 1.13 V/R
= 0 V
= 0 V
= V
= V
= 0 V
f
f
= V
f
= 10 ns
= 10 ns
= 10 ns
DD
Variations ( ∆ I
DD
DD
F.G
F.G
F.G
OUT1
CLOCK
SERIAL-IN
CLOCK
SERIAL-IN
ENABLE
LATCH
ENABLE
LATCH
CLOCK
SERIAL-IN
ENABLE
LATCH
R-EXT
R-EXT
R-EXT
OUT1
/ ∆ I
OUT2
), Output Leakage Current (I
EXT
TENTATIVE
V
V
GND
GND
GND
), Current Variation with V
× 16 (VG=1)
DD
DD
11
SERIAL-OUT
SERIAL-OUT
SERIAL-OUT
OUT0
OUT7
OUT0
OUT7
OUT0
OUT7
C
A
A
A
R
L
L
= 10.5 pF
=300 Ω
I
OUT
C
L
OZ
DD
) Output Current
(%/V
(Ver.0.0) 08-02-07
DD
TB62778FNG
)
A